BAO cosmography

Abstract

Cosmography provides a model-independent way to map the expansion history of the Universe. In this paper we simulate a Euclid-like survey and explore cosmographic constraints from future Baryonic Acoustic Oscillations (BAO) observations. We derive general expressions for the BAO transverse and radial modes and discuss the optimal order of the cosmographic expansion that provide reliable cosmological constraints. Through constraints on the deceleration and jerk parameters, we show that future BAO data have the potential to provide a model-independent check of the cosmic acceleration as well as a discrimination between the standard $\Lambda$CDM model and alternative mechanisms of cosmic acceleration.

11 pages, 2 tables, 2 figures; accepted for publication on JCAP

References in corpus (8)

• Dynamics of dark energy
• The Hubble series: Convergence properties and redshift variables
• Figure of Merit for Dark Energy Constraints from Current Observational Data
• Cosmographic Hubble fits to the supernova data
• Model independent constraints on the cosmological expansion rate
• Testing Cosmology with Cosmic Sound Waves
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• A cosmographic analysis of the transition to acceleration using SN-Ia and BAO
• Nonparametric reconstruction of the Om diagnostic to test LCDM
• Cosmography with Standard Sirens from the Einstein Telescope
• Dark Energy: The Shadowy Reflection of Dark Matter?
• Cosmographic Footprints of Dynamical Dark Energy
• Machine Learning and cosmographic reconstructions of quintessence and the Swampland conjectures
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• Cosmography from well-localized Fast Radio Bursts
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• Curvature dark energy reconstruction through different cosmographic distance definitions
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• Characterising Dark Energy through supernovae
• Density perturbation in the models reconstructed from jerk parameter
• The Cosmological Effect of CMB/BAO Measurements
• Perturbations In Some Dark Energy Models